DIY cushions for patio furniture. Super easy. I didn't have old cushions to cover so I used layers of cheap bed padding foam wrapped in batting. Look here for how to do boxed corners that are not covered well http://craftapple.wordpress.com/2007/09/01/sewing-tip-squarely-boxing-those-corners/
Recovering your outdoor cushions. You can even use a decorative shower curtain in you want something that is water repellant. omg thats an awesome idea! I've been wondering what I could use to cover my outdoor furniture that would stand up to the weather.